---
title: "Imessage Delivery Event"
method: POST
path: "/imessage_webhooks/delivery"
tags: ["imessage"]
---

# Imessage Delivery Event

`POST /imessage_webhooks/delivery`

## Request

- Base URL: `https://api.imperfect.co` (the document declares no server; this is the origin it was published from)
- URL: `https://api.imperfect.co/imessage_webhooks/delivery`
- Auth: none declared

ACK after persistence; the existing drain applies the outcome once.

## Request body

- IMessageDeliveryEvent: The original admission key and Footman's durable terminal result.
  - `idempotency_key` string, required
  - `result` IMessageSendResult, required: Footman's durable job state; incomplete and uncertain sends cannot fall back.
    - `message_request_id` string, required
    - `status` 'queued' | 'sending' | 'sent' | 'failed' | 'expired' | 'uncertain', required
    - `message_ids` string[], required
    - `safe_to_fallback` boolean, required
    - `replayed` boolean, required
    - `error_code` string, nullable

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-09** `550adac376a7`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/imperfect/apis/imperfect-api/changes/imessage_webhooks/delivery/post.md)

---

[API](https://skmtc.dev/imperfect/apis/imperfect-api.md) - [All operations](https://skmtc.dev/imperfect/apis/imperfect-api/llms.txt) - [OpenAPI document](https://skmtc.dev/imperfect/apis/imperfect-api/revisions/18d930bc8262?raw)